The Knight Bus

For witches and wizards who are Floo-sick, whose Apparition is unreliable, who hate heights or who feel frightened or queasy taking Portkeys, there is always the Knight Bus, which appears whenever a witch or wizard in urgent need of transportation sticks out their wand arm at the kerb.

A purple, triple-decker bus, it has seats during the day and beds at night. It is not particularly comfortable, and I would advise against ordering hot drinks even if offered, because the bus’s habit of leaping from one destination to another at a moment’s notice can result in a lot of spillage.

J.K. Rowling’s thoughts

The Knight Bus was so-named because, firstly, knight is a homonym of night, and there are night buses running all over Britain after normal transport stops. Secondly, ‘knight’ has the connotation of coming to the rescue, of protection, and this seemed appropriate for a vehicle that is often the conveyance of last resort.